Butter Rum Reef is a somewhat hard episode. It has two somewhat hard levels: 1282 and 1293, three hard levels: 1284, 1286 and 1289, and two very hard levels: 1287 and 1292. The rest of the levels are rated below "somewhat hard". Overall, this episode is easier than the previous episode, Diamond District.

None of the levels is 6-coloured, and the only order level is not an "extra colour" level.

Although there are 10 jelly levels in this episode, there has never been a chain of 3 jelly levels in a row.

This is the twenty-fourth episode in Reality that does not need tickets to go on to the next episode.

This episode's character appears in one of the events way before release of this episode.

Upon the release, this episode was called "ButterRom Reef", which was also the only episode in which a letter is capitalised not in the beginning of a word. It has been changed one week later before release of the next episode, Hoax Hollow.

In mobile devices, if the version is before 1.63, you'll get to receive this old episode name.

This is one of the few episodes where the scenery of pathway map is almost identical in web version and mobile version. Most of the time, the background colour of mobile version is different, and there are less objects. Other episodes include Cereal Sea.

The only difference is the episode banner, written in black letters on web version, and white letters on mobile, as per standard.

This episode could easily break the trend of having every fourth to last level being very hard to extremely hard from Wonky Wonderland.